Researchers deleted the expression of an important imprinted gene called Igf2, which provides instructions for making a protein called 'Insulin Like Growth Factor 2'. The mother also has a chance of having subsequent pregnancies potentially with different males in the future to pass on her genes more widely." Professor Sferruzzi-Perri explained: "Those genes from the mother that limit fetal growth are thought to be a mother's way of ensuring her survival, so she doesn't have a baby that takes all the nutrients and is too big and challenging to birth. ![]() The baby's genes controlled by the father tend to promote fetal growth and those controlled by the mother tend to limit fetal growth. The findings by researchers from the Centre for Trophoblast Research at Cambridge's Department of Physiology, Development and Neuroscience and the Medical Research Council Metabolic Diseases Unit, part of the Wellcome-MRC Institute of Metabolic Science, have been published in Cell Metabolism. Although pregnancy is largely cooperative, there is a big arena for potential conflict between the mother and the baby, with imprinted genes and the placenta thought to play key roles." "Genes controlled by the father are 'greedy' and 'selfish' and will tend to manipulate maternal resources for the benefit of the fetuses, so to grow them big and fittest. Miguel Constancia, MRC Investigator based at the Wellcome-MRC Institute of Metabolic Science and co-senior author of the paper, said, "The baby's remote control system is operated by genes that can be switched on or off depending on whether they are a 'dad's' or 'mum's' gene', the so-called imprinted genes. Professor Amanda Sferruzzi-Perri, Professor in Fetal and Placental Physiology, a Fellow of St John's College and co-senior author of the paper, said, "It's the first direct evidence that a gene inherited from the father is signaling to the mother to divert nutrients to the fetus."ĭr. In pregnant mice, scientists selectively altered the signaling cells in the placenta that tell mothers to allocate nutrients to her developing fetuses. The placenta is a vital organ that develops with the fetus in pregnant women and other female mammals to support the developing fetus. The mother's body wants the baby to survive but needs to keep enough glucose and fats circulating in her system for her own health, to be able to deliver the baby, breastfeed and to reproduce again.Ī new study from the University of Cambridge published today examines how the placenta communicates with the mother through the release of hormones so she will accommodate her baby's growth. For eligible contributors who filed a final payment request prior to the September 30th deadline, you should receive it by December 31st.The unborn baby 'remote controls' its mother's metabolism so the two are in a nutritional tug of war. Decreased business and increasing costs has made it no longer possible to keep operating, to our great disappointment.Īs advised in our announcement on September 1st, all our membership agreements have now been terminated. ![]() Today of course everyone has a capable digital camera in their pocket, and the advent of AI means amazing images can be created from programs with just a few keywords. ![]() The industry has changed significantly over this time, with CanStock launched in 2004 during the early mass adoption of digital cameras, and before "social media" was even a phrase. Can Stock Photo has now ceased operations.Īfter nearly 20 years in business we have been forced to make this very difficult decision and would like to thank our many thousands of talented contributors and customers for making it possible.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |